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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11590479 B1

PDFFull Text
Date of Patent:
Feb. 28, 2023

Filed:

Jun. 22, 2017

Interior material having surface layer having visible light-responsive photocatalytic activity, and method for manufacturing same

Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Manabu Furudate, Kamisu, JP;

Tomohiro Inoue, Kamisu, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Colin W Slifka

Assistant Examiner:

Michael Forrest

Int. Cl.
CPC ...
B01J 23/28 (2006.01); A61L 2/08 (2006.01); A61L 2/232 (2006.01); B01D 53/86 (2006.01); B01J 21/08 (2006.01); B01J 23/00 (2006.01); B01J 23/22 (2006.01); B01J 23/745 (2006.01); B01J 35/00 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); E04F 13/08 (2006.01);
U.S. Cl.
CPC ...
B01J 23/28 (2013.01); A61L 2/084 (2013.01); A61L 2/088 (2013.01); A61L 2/232 (2013.01); B01D 53/8668 (2013.01); B01J 21/08 (2013.01); B01J 23/002 (2013.01); B01J 23/22 (2013.01); B01J 23/745 (2013.01); B01J 35/004 (2013.01); B01J 35/0006 (2013.01); B01J 37/0009 (2013.01); B01J 37/0215 (2013.01); A61L 2202/25 (2013.01); B01D 2255/2094 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/20769 (2013.01); B01D 2255/802 (2013.01); B01D 2257/708 (2013.01); E04F 13/08 (2013.01);
Abstract

The present invention provides: an interior material having a surface layer which has visible light-responsive photocatalytic activity and which contains two types of titanium oxide microparticles, the two types of titanium oxide microparticles comprising first titanium oxide microparticles, in which a tin component and a transition metal component for enhancing visible light responsiveness (excluding iron group components) are in solid solution, and second titanium oxide microparticles, in which an iron group component is in solid solution; and a method for manufacturing the interior material. The present invention makes it possible to provide an interior material in which visible light-responsive photocatalytic titanium oxide microparticles, which make it possible to easily produce a surface layer (photocatalyst thin film) having high transparency and expressing photocatalytic activity even in response to visible light (400-800 nm) only, are applied onto a surface, whereby it is possible to obtain, under indoor illumination, excellent photocatalytic properties such as an antimicrobial property and a property of breaking down chemical substances in indoor air without adversely affecting the design quality of the article in question.

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